What is Word Choice?
READ THIS:http://www.kimskorner4teachertalk.com/writing/sixtrait/sixtrait/word_choice_poster.pdf

Resource for powerful verbs http://chelljaguars.tripod.com/verbs.htm

Example of how to use precise nouns

Choosing precise nouns makes it unnecessary to add layers of descriptive adjectives that lengthen sentences and comprehension time. (Your adjectives, anyway, will have greater impact if they are not overused.) Compare the following generic nouns on the left with the more connotative suggestions on the right:
youth
juvenile, teenager, child, adolescent
woman
lady, mistress, matron, femme fatale
house
cabin, mansion, cottage, villa
group
horde, clan, team, committee
http://www.butte.edu/departments/cas/tipsheets/style_purpose_strategy/writing_clearly.html
Avoid "Slang" slangcanstock3767293.jpg